Search found 1635 matches
- Thu May 03, 2018 1:15 pm
- Forum: Photography Through the Microscope
- Topic: Some puzzling crystals
- Replies: 5
- Views: 2609
I suppose Pau's obscure Australian tree alkaloid is a definite possibility. That's exactly the kind of thing the Victorian slide makers liked, but it's supposed to be colourless unless reacted with strong acids. Images of sections of porphyry minerals from the web don't look anything like my specime...
- Thu May 03, 2018 12:53 pm
- Forum: Nature Photography -- Macro and Close-up
- Topic: A few nivicolous myxomycetes..
- Replies: 18
- Views: 15284
- Thu May 03, 2018 12:51 pm
- Forum: Photography Through the Microscope
- Topic: Down the rabbit hole! -- Ammonite Tragophylloceras
- Replies: 9
- Views: 2880
Yes this is a small pyritised polished fossil ammonite from the Jurassic coast in the UK, identified by the eBay vendor as Tragophylloceras. The entire specimen is 15mm wide and the field width in the stereo image is 3mm. The image was taken with a Leitz Plan X2.5 objective and is a Zerene DMap stac...
- Thu May 03, 2018 1:28 am
- Forum: Photography Through the Microscope
- Topic: Down the rabbit hole! -- Ammonite Tragophylloceras
- Replies: 9
- Views: 2880
- Thu May 03, 2018 1:26 am
- Forum: Photography Through the Microscope
- Topic: Some puzzling crystals
- Replies: 5
- Views: 2609
Some puzzling crystals
This is a quiz I don't know the answer to myself. I bought this interesting slide on eBay. It has some pretty red crystals and a rather enigmatic label. First a rather bad macro shot of the subject and one of the label. http://www.photomacrography.net/forum/userpix/718_IMG_9358_1.jpg http://www.phot...
- Thu May 03, 2018 12:50 am
- Forum: Photography Through the Microscope
- Topic: Down the rabbit hole! -- Ammonite Tragophylloceras
- Replies: 9
- Views: 2880
Down the rabbit hole! -- Ammonite Tragophylloceras
Looks like the door at the end is firmly closed, but do you know who owned this desirable residence? I don't want to give details like magnification or field size at this stage, as it would be a pretty big clue. To me it seems ridiculously easy, but then I know the answer :lol: I'm sure someone here...
- Sun Apr 29, 2018 6:26 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Nikon Microphot. DIC Sénarmont
- Replies: 25
- Views: 8118
As far as image size is concerned you can post much larger photos on the forum than your two samples. First, make sure that your image dimensions are 1024 pixels or smaller, on both axes, AND that the image file length is 300 KB or smaller. Use your favorite photo editor to resize the image and set ...
- Sun Apr 29, 2018 6:12 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Looking for help with specimen contrast / lighting
- Replies: 15
- Views: 5782
For diffusion I suggest you try a suitable sized cylinder of paper. Tracing paper is a good place to start, but it is worth experimenting with alternatives. If it eats too much light the answer should be more light. Diffusion is pretty much always important with incident lighting. It looks like you ...
- Sun Apr 29, 2018 6:00 am
- Forum: Nature Photography -- Macro and Close-up
- Topic: A few nivicolous myxomycetes..
- Replies: 18
- Views: 15284
- Sat Apr 28, 2018 9:32 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Looking for help with specimen contrast / lighting
- Replies: 15
- Views: 5782
What does "eksplantat" mean?. I'm guessing Johny M means explant, in other words in vitro cultivation of a part of the plant in an agarose medium. There seems to be a surprising amount of noise in the images as well as some overexposure and lack of contrast that could be improved in post processing...
- Sat Apr 14, 2018 4:17 am
- Forum: Photography Through the Microscope
- Topic: Solea solea Scale
- Replies: 7
- Views: 1866
Fish scales make great subjects for polarised light. Scales from Solea are a classic.
http://www.photomacrography.net/forum/v ... 020#182020
Salmon scales from your dinner are also very good, though they may need a bit of a clean.
http://www.photomacrography.net/forum/v ... 020#182020
Salmon scales from your dinner are also very good, though they may need a bit of a clean.
- Sat Apr 14, 2018 4:10 am
- Forum: Photography Through the Microscope
- Topic: Tondenti Spumam crater
- Replies: 6
- Views: 1801
- Fri Apr 13, 2018 7:09 am
- Forum: Photography Through the Microscope
- Topic: Paramecium caudatum
- Replies: 13
- Views: 3369
- Fri Apr 13, 2018 7:04 am
- Forum: Photography Through the Microscope
- Topic: A Study in Scarlet aka There Will be Blood - images added
- Replies: 17
- Views: 7425
Thanks micro_pix and eward1897. Comments like these are really appreciated and make, what is very much a labour of love, worthwhile. :D Just like to repeat this for anyone who is interested in the content of this thread and may have missed it: As an aside I have a number of other injected and corrod...
- Thu Apr 12, 2018 12:20 am
- Forum: Photography Through the Microscope
- Topic: Paramecium caudatum
- Replies: 13
- Views: 3369